Toshiba Satellite L30 (PSL33) User Manual
Page 151
 
User’s Manual
Glossary-2
Glossary
KB: kilobyte 
LCD: liquid crystal display 
LED: light emitting diode 
LSI: large scale integration 
MS-DOS: Microsoft
®
disk Operating System
OCR: optical character recognition (reader) 
PCB: printed circuit board 
PCI: peripheral component interconnect 
RAM: random access memory 
RGB: red, green, and blue 
ROM: read only memory 
RTC: real time clock 
SCSI: small computer system interface 
SIO: serial input/output 
SXGA+: super extended graphics array plus 
TFT: thin-film transistor 
UART: universal asynchronous receiver/transmitter 
USB: Universal Serial Bus 
UXGA: ultra extended graphics array 
VESA: Video Electronic Standards Association 
VGA: video graphics array 
VRT: voltage reduction technology 
XGA: extended graphics array 
A
adaptor: A device that provides an interface between two dissimilar
electronic devices. For example, the AC adaptor modifies the power
from a wall outlet for use by the computer. This term also refers to
the add-in circuit cards that control external devices, such as video
monitors and magnetic tape devices.
allocate: To assign a space or function for a specific task. 
alphanumeric: Keyboard characters including letters, numbers and other 
symbols, such as punctuation marks or mathematical symbols.
alternating current (AC): Electric current that reverses its direction of flow
at regular intervals.
analog signal: A signal whose characteristics such as amplitude and
frequency vary in proportion to (are an analog of) the value to be
transmitted. Voice communications are analog signals.